body {
  margin: 0;
  font-size: 0.9em;
  font-family: Arial, sans-serif; /* 建议加字体，增强兼容性 */
  background-color: #f9f9f9; /* 可选，轻微背景色，提升层次 */
}

#container {
  position: relative;
  width: 980px;
  margin: 0 auto;
  border-left: 3px solid transparent;  /* 保留宽度占位 */
  border-right: 3px solid transparent;
}

#header {
  position: relative;
  height: 100px;
  background-image: url(../images/logo.jpg);
  background-repeat: no-repeat;
  background-size: 100px 100px;
  background-position: left center; /* 明确定位背景图 */
  padding-left: 110px; /* 避免内容覆盖logo */
}

#header ul {
  position: absolute;
  right: 10px;
  bottom: 5px;
  padding: 0;
  margin: 0;
}

#header li {
  display: inline;
  margin-left: 10px; /* 避免紧贴 */
}

#header ul, #menu ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: flex-end;
  background-color: #006064;
}

#header ul li, #menu ul li {
  padding: 10px 15px;
}

#header ul li a, #menu ul li a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}

#header ul li a:hover, #menu ul li a:hover {
  text-decoration: underline;
}


#content {
  background-color: #FFFFFF;
  width: 95%;
  margin: 20px auto; /* 顶部添加间距 */
  position: relative;
  text-align: center;
  box-sizing: border-box;
  padding: 20px 10px; /* 内容内边距 */
  box-shadow: 0 0 8px rgba(0,0,0,0.05); /* 轻微阴影 */
  border-radius: 4px; /* 圆角 */
}

#footer {
  clear: both;
  text-align: center;
  padding: 10px 0;
  font-size: 0.8em;
  color: #666;
}

hr {
  margin-top: 30px;
  width: 70%;
  clear: both;
  border: none;
  border-top: 1px solid #ddd;
}

address {
  font-style: normal;
  padding-top: 15px;
  padding-left: 5px;
}

address span {
  font-weight: bold;
}

#content ul {
  margin: 0;
  padding: 0;
  list-style-type: none;
}

#content li a {
  display: block;
  width: 90px;
  padding: 5px 0;
  margin-bottom: 5px;
  background-color: #00838f;
  text-align: center;
  text-decoration: none;
  color: #000;
  border-radius: 3px;
  transition: background-color 0.3s ease;
}

#content li a:hover {
  background-color: #006064;
  color: white;
}

div.submenu {
  position: absolute;
  border: solid 1px #ffffff;
  top: 20px;
  left: 10px;
  background: #006064;
  border-radius: 4px;
  padding: 5px 0;
}

div.subcontent {
  border: solid 1px #ffffff;
  width: 820px;
  padding-left: 120px;
  box-sizing: border-box;
  background-color: #fff;
  border-radius: 4px;
}
